CN108845763A - A kind of system and method for managing disk state concentratedly - Google Patents

Abstract

The application discloses a system and method for centralized management of hard disk status. The system includes an acquisition module and a board, the board can be connected to the main board of the server in a pull-out manner, and the board includes a connector, a CPLD and a display module. The acquisition module is used to collect the operating status of the hard disk and transmit the operating status of the hard disk to the CPLD; one end of the connector is connected to the acquisition module through a cable, the other end is connected to the input end of the CPLD, and the output end of the CPLD is connected to the display module. This method first acquires the running status of the hard disk, and transmits the running status of the hard disk to the CPLD through a cable; secondly, the CPLD decodes the running status of the hard disk; then, according to the decoding result, the CPLD sends a control command to the display module; command to display the hard disk status. Through the system and method in the present application, the running state of the hard disk can be managed and viewed in a centralized manner, which is beneficial to improving the accuracy of hard disk state management and reducing the design cost of the storage system.

Description

A system and method for centralized management of hard disk status

technical field

The present application relates to the technical field of server boards, in particular to a system and method for centralized management of hard disk status.

Background technique

In a high-density storage system, how to visually display the operating status of the hard disk is closely related to the overall structural design of the storage system. For example, the 1U storage system design supports 12LFF HDD (3.5-inch hard disk) and 24SFF HDD (2.5-inch hard disk), the 3U storage system design supports 48LFF HDD (3.5-inch hard disk), and the 4U storage system design supports 100LFF HDD. How to check the running status of the hard disk through the PCBA design of different storage systems is an important issue.

At present, in the design of high-density storage systems, the operating status of the hard disk is mainly checked by directly checking the LED lights on the backboard of the hard disk. Specifically, the LED displaying the state of the hard disk is made on the PCBA (Printed Circuit Board Assembly, printed circuit board) of the high-density storage system, and then the state of the LED is guided to the front end of the system through the light guide column on the hard disk bracket for monitoring the system. The running status of the hard disk; or directly guide the status of the LED to the front of the system through the light guide column to monitor the running status of the system hard disk.

However, the LED light on the PCB board is guided to the hard disk bracket through the light guide column on the hard disk bracket. Since most of the hard disks are inside the chassis, the hard disk needs to be opened to observe the running status of the hard disk. Therefore, it is not convenient to check Hard disk status. Directly guide the LED lights on the PCB board to the front end of the system through the light guide column, it is necessary to arrange the wiring of the light guide column in the entire chassis, and the light guide column will occupy the space of the chassis, and it is not easy to fix, so the production and assembly are complicated and costly. high.

Contents of the invention

The present application provides a system and method for centrally managing the hard disk status, so as to solve the problem in the prior art that the hard disk status cannot be checked accurately and conveniently.

In order to solve the above technical problems, the embodiment of the present application discloses the following technical solutions:

A system that can centrally manage the state of a hard disk, the system comprising: an acquisition module and a board, wherein the board is pull-outly connected to a server mainboard, and the board includes a connector, a CPLD (Complex Programmable LogicDevice, complex programmable logic device) and a display module, one end of the connector is connected to the acquisition module, the other end of the connector is connected to the input of the CPLD, and the output of the CPLD is connected to the display module;

The collection module is used to collect the running state of the hard disk, and transmit the running state of the hard disk to the CPLD;

The CPLD is used to decode the acquired running state of the hard disk, and control the display module to display the running state of the hard disk according to the decoding result.

Optionally, the display module includes an LED (Light-Emitting Diode, light-emitting diode) total display and multiple groups of LEDs, each group of LEDs is matched with a hard disk, the output of the CPLD is connected to the LED total display, and the CPLD The output terminals of the LEDs are also respectively connected to any group of LEDs in the plurality of groups of LEDs;

The LED total display is used to display the operating status of the entire storage system;

The LEDs are used to display the Active, Locate and Fault states of each hard disk in the storage system.

Optionally, the acquisition module includes a control chip and a cable, the control chip is arranged in the main board of the server, and the control chip transmits the status of the hard disk to the CPLD through the cable.

Optionally, the cable includes an SGPIO (a low-speed parallel-to-serial bus) bus or an I2C (Inter-Integrated Circuit, connecting a microcontroller and its peripherals) bus.

Optionally, the acquisition module includes a control chip, and the control chip transmits the status of the hard disk to the CPLD through an IO pin provided on the control chip.

Optionally, the hard disk includes a SATA (Serial Advanced Technology Attachment, Serial Advanced Technology Attachment) hard disk, a SAS (Serial Attached SCSI, Serial Attached SCSI or Serial Attached Small Computer System Interface) hard disk, or an NVMe (Non- Volatile Memory express, non-volatile memory host controller interface specification) hard disk.

Optionally, when the hard disk is a SATA hard disk, the control chip is a SATA controller or a SATA expander; when the hard disk is a SAS hard disk, the control chip is a SAS controller or a SAS expander; when the hard disk is an NVMe hard disk, the control chip It is CPU or PCIE (Peripheral Component Interconnect Express, a high-speed serial computer expansion bus standard) Switch.

A method for centrally managing the state of a hard disk, the method comprising:

Obtain the running status of the hard disk, and transmit the running status of the hard disk to the CPLD through the cable;

CPLD decodes the running status of the hard disk;

According to the decoding result, the CPLD sends a control command to the display module;

The display module displays the status of the hard disk according to the obtained control command.

Optionally, the display module includes a total LED display and multiple groups of LEDs, each group of LEDs is matched with a hard disk, the output of the CPLD is connected to the total LED display, and the output of the CPLD is also connected to multiple groups of LEDs Any set of LED connections in ;

The LED total display is used to display the operating status of the entire storage system;

The LEDs are used to display the status of each hard disk in the storage system.

Optionally, according to the decoding result, the method for the CPLD to send a control command to the display module includes:

If the decoding result is that all hard disks are running normally, the CPLD sends a control command for the normal operation of the entire storage system to the LED total display, and the CPLD sends the Active state command and the Locate state command of the hard disk corresponding to the arbitrary group of LEDs to any group of LEDs;

If the decoding result shows that at least one hard disk fails, the CPLD sends a control command to the LED total display indicating that the entire storage system is running abnormally, and the CPLD sends a command to light the Fault status of the hard disk to the LED matching the faulty hard disk.

The technical solutions provided by the embodiments of the present application may include the following beneficial effects:

The present application provides a system capable of centrally managing hard disk status. The system includes an acquisition module and a board, wherein the board and the main board of the server can be connected in a pull-out manner, and the board includes a connector, a CPLD and a display module. The acquisition module is used to collect the running status of the hard disk and transmit the running status of the hard disk to the CPLD; one end of the connector is connected to the acquisition module through a cable, the other end of the connector is connected to the input end of the CPLD, and the output end of the CPLD is connected to the display module . This application transmits the hard disk status information to the CPLD of the board through the acquisition module, decodes the hard disk status information from the acquisition module through the CPLD, and controls the display module to display the hard disk status according to the decoding result, thereby realizing the centralized management of the hard disk.

In addition, the display module in this application includes a total LED display and multiple groups of LEDs. Each group of LEDs matches a hard disk. The total LED display can display the operating status of the entire storage system, and each group of LEDs can display three types of data for each hard disk. Operating status. When the LED total display shows a fault, it indicates that at least one hard disk has failed, and then turn on the board, and find the faulty hard disk according to the status of the LED in the board. Therefore, the hard disk status management in this application is more convenient. In addition, in this application, the control chip is connected to the connector on the board through a cable. The cable uses a low-speed bus such as the SGPIO bus or I2C bus, so that the application uses a small number of signal lines to transmit the status of the hard disk to the board. centralized management. Therefore, this management system does not take up space in the chassis, and the CPLD can accurately reflect the running status of the hard disk.

The present application also provides a method for centralized management of hard disk status. The method first obtains the running status of the hard disk, and transmits the running status of the hard disk to the CPLD through wiring; secondly, the CPLD decodes the running status of the hard disk; then, according to the decoding result, the CPLD sends The display module sends a control command; finally, the display module displays the status of the hard disk according to the obtained control command. The method in this application avoids the use of a light guide column, and can transmit the status of the hard disk to the CPLD under the condition of using a small number of signal lines, thereby realizing centralized management of the hard disk. Moreover, the method in the present application not only displays the running status of the entire storage system, but also displays the status of each hard disk in the storage system. The control command, and the control command to control each LED. When the LED total display shows a fault, it indicates that at least one hard disk has failed, and then turn on the board, and find the faulty hard disk according to the status of the LED in the board. Therefore, the hard disk status management in this application is more convenient and faster. Moreover, the present application manages and controls the state of the hard disk through the CPLD, which is conducive to improving the accuracy and reliability of hard disk state management.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, In other words, other drawings can also be obtained from these drawings on the premise of not paying creative work.

FIG. 1 is a schematic structural diagram of a system that can centrally manage hard disk status provided by an embodiment of the present application;

Fig. 2 is a schematic diagram of the SGPIO transmission mode in the embodiment of the present application;

Fig. 3 is the working principle diagram of the system that can centrally manage the hard disk state in the embodiment of the present application;

4 is a schematic diagram of a drawable connection mode between the board and the server main board in the embodiment of the present application;

FIG. 5 is a schematic flowchart of a method for centrally managing hard disk status provided by an embodiment of the present application.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

In order to better understand the present application, the implementation manner of the present application will be explained in detail below in conjunction with the accompanying drawings.

Embodiment one

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of a system capable of centrally managing hard disk status provided by an embodiment of the present application. It can be seen from FIG. 1 that the system for centralized management of hard disk status in this application mainly includes two parts: an acquisition module and a board. The board includes a connector, a CPLD and a display module connected in sequence, one end of the connector is connected to the acquisition module, the other end of the connector is connected to the input end of the CPLD, and the output end of the CPLD is connected to the display module. The acquisition module is used to collect the running status of the hard disk, and transmit the running status of the hard disk to the CPLD; the CPLD is used to decode the acquired running status of the hard disk, and control the display module to display the running status of the hard disk according to the decoding result.

In this embodiment, the CPLD is built in the board, the LED total display is set at the end of the board facing the observer, and multiple groups of LEDs are placed on the same plane of the board.

In this implementation, the display module includes a total LED display and multiple groups of LEDs, and each group of LEDs matches a hard disk. The output terminal of the CPLD is connected with the LED total display, and the output terminal of the CPLD is also respectively connected with any group of LEDs among the multiple groups of LEDs. Among them, the LED total display is used to display the running status of the entire storage system; the LED is used to display the Active, Locate and Fault status of each hard disk in the storage system.

Usually, when the hard disk is running normally and there is no read or write operation, the Active LED in the group of LEDs corresponding to the hard disk is always green; when the hard disk is running normally and the system is reading or writing to the hard disk, The Active LED is blinking green. When the system locates the hard disk, the Locate LED in the group of LEDs corresponding to the hard disk will light up. When the hard disk is damaged, runs incorrectly or needs to be replaced, the Fault LED in the group of LEDs corresponding to the hard disk will light up.

In this embodiment, the display module includes a total LED display. When any hard disk in the storage system has a problem, the total LED display is red, indicating an alarm; when all the hard disks in the storage system are running normally, the total LED display is green, indicating The entire storage system is running normally. When the user needs to check the status of the hard disks in the current storage system, he can check the LED total display first. When the LED total display is green, he can know that all the hard disks in the entire storage system are in normal operation without opening the card; when the LED total When the display is red, it indicates that at least one hard disk in the current storage system has failed. Then turn on the board and find the failed hard disk according to the status of the LEDs in the board. Therefore, it is more convenient and faster to use the system in this application to manage the status of the hard disk.

Further, the acquisition module in this embodiment includes a control chip and a cable, the control chip is arranged in the main board of the server, and the control chip transmits the status of the hard disk to the CPLD through the cable.

The control chip can use SAS controller or SAS expander, and the cable can use SGPIO bus or I2C bus, both of which are low-speed buses. In the embodiment of the present application, the status of the hard disk can be transmitted to the board by using a small number of signal lines, so as to realize centralized management of the status of the hard disk. Therefore, this management system does not take up space in the chassis, and the CPLD can accurately reflect the running status of the hard disk.

Further, the acquisition module in this embodiment may also only include a control chip, and the control chip transmits the status of the hard disk to the CPLD through its own IO pins, thereby realizing centralized management of the status of the hard disk.

The hard disk in this embodiment mainly includes: common hard disks such as SATA hard disk, SAS hard disk or NVMe hard disk. When the hard disk is a SATA hard disk, the control chip is a SATA controller or a SATA expander. For example, the control chip of the SATA hard disk can be a South Bridge chip. When the hard disk is a SAS hard disk, the control chip is a SAS controller or a SAS expander. When the hard disk is an NVMe hard disk, the control chip is a CPU or a PCIE Switch.

In this embodiment, the number of pins of the CPLD depends on the number of hard disks supported by the storage system, and each hard disk corresponds to 3 GPIOs, which are respectively used to control the LEDs corresponding to the hard disk.

See Figure 2, Figure 2 is a schematic diagram of the SGPIO transmission mode. Taking SGPIO as an example, the transmission process of the LED status of the hard disk in this embodiment is as follows: SGPIO transmits data bit by bit under the clock shift pulse, with the high bit first and the low bit behind. Among them, the high-order data and the low-order data are two unidirectional data lines. These two unidirectional data lines adopt full-duplex communication and no addressing mechanism, and can reach several Mbps in practical applications. In this embodiment, the bits for one transmission can be defined according to the number of hard disks required by the user. Each hard disk occupies 3 bits at a time, and the 3 bits are respectively active, locate and fault. Moreover, in this embodiment, the CPLD is used to decode the SGPIO and control the status of the LED corresponding to the hard disk.

Referring to FIG. 3 , FIG. 3 is a working principle diagram of the system capable of centrally managing the hard disk status in this embodiment, and LED0 in FIG. 3 represents the total LED display. As can be seen from Figure 3, the board in this embodiment is connected to the control chip SAScontroller, SATA controller or PCIE Switch through a cable, and the SGPIO or I2C low-speed bus is used to transmit information in the cable; each hard disk corresponds to its own running status LED, LED The location information of the hard disk is subscripted to facilitate quick positioning; LED0 can indicate the running status of the hard disk in the entire system. When all hard disks are running normally, LED0 is green. Once a hard disk has a problem, LED0 is red, prompting the user to replace the board Card ejected, check the exact location of the failed hard drive. LED0 is designed at the front end of the entire board, after installation into the system, you can directly observe the status of LED0.

In addition, in this embodiment, a drawable connection is adopted between the board and the main board of the server, and the board can be installed on the side of the hard disk backplane of the server, next to the hanging ears of the server chassis, or under the hard disk backplane of the server. The specific placement position of the board is determined according to the specific mechanism design in the actual situation, for the purpose of easy removal and inspection. Refer to Figure 4 for the drawable connection between the board and the server mainboard.

To sum up, in this embodiment, by designing a single board, the running status of the hard disks can be centrally managed, and the running status of all the hard disks can be checked conveniently. For high-density storage, this embodiment cancels the design of the light guide column, which helps to improve the accuracy of hard disk status management, and helps save the space of the main board of the server, thereby reducing the design cost of the storage system. In addition, this embodiment mainly adopts CPLD and a few signal lines, and its structure is simple, which is convenient for popularization and use.

Embodiment two

Referring to FIG. 5 on the basis of the embodiments shown in FIGS. 1-4 , FIG. 5 is a schematic flowchart of a method for centralized hard disk status management provided by an embodiment of the present application. As can be seen from FIG. 5, the method for centralized management of hard disk status in the present application includes the following steps:

S1: Obtain the running status of the hard disk, and transmit the running status of the hard disk to the CPLD through the cable.

S2: CPLD decodes the running status of the hard disk.

The method for the CPLD to decode the acquired operating state of the hard disk adopts the method in the prior art, and will not be repeated here.

S3: According to the decoding result, the CPLD sends a control command to the display module.

In this embodiment, the display module includes a total LED display and multiple groups of LEDs, each group of LEDs is matched with a hard disk, and the output terminal of the CPLD is connected with the total LED display, and the output terminal of the CPLD is also connected to any group of LEDs in multiple groups respectively. LED connection. The LED total display is used to display the running status of the entire storage system; the LED is used to display the status of each hard disk in the storage system.

Specifically, step S3 includes the following processes:

S31: If the decoding result is that all hard disks are running normally, the CPLD sends a control command for the normal operation of the entire storage system to the LED total display, and the CPLD sends the Active state command and the Locate state of the hard disk corresponding to the arbitrary group of LEDs to any group of LEDs Order.

S32: If the decoding result is that at least one hard disk is faulty, the CPLD sends a control command indicating that the entire storage system is running abnormally to the total LED display, and the CPLD sends a command to turn on the Fault state of the hard disk to the LED matching the faulty hard disk.

S4: The display module displays the status of the hard disk according to the obtained control command.

For the parts not described in detail in this embodiment, refer to Embodiment 2 shown in FIGS. 1-4 , and the two embodiments may refer to each other, and details are not repeated here.

The above descriptions are only specific implementation manners of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A system that can centrally manage the state of the hard disk, characterized in that the system includes: an acquisition module and a board, wherein the board can be connected to the main board of the server in a pull-out manner, and the board includes a connector, CPLD and display module, one end of the connector is connected with the acquisition module, the other end of the connector is connected with the input end of the CPLD, and the output end of the CPLD is connected with the display module; The collection module is used to collect the running state of the hard disk, and transmit the running state of the hard disk to the CPLD; The CPLD is used to decode the acquired running state of the hard disk, and control the display module to display the running state of the hard disk according to the decoding result. 2. A kind of system that can centrally manage hard disk state according to claim 1, it is characterized in that, described display module comprises LED total display and multiple groups of LEDs, every group of LEDs matches with a hard disk, the output of described CPLD The end is connected with the LED total display, and the output end of the CPLD is also connected with any group of LEDs in the plurality of groups of LEDs; The LED total display is used to display the operating status of the entire storage system; The LEDs are used to display the Active, Locate and Fault states of each hard disk in the storage system. 3. A system capable of centralized management of hard disk status according to claim 1, wherein the acquisition module includes a control chip and a cable, the control chip is arranged in the mainboard of the server, and the control chip controls the hard disk The status is transmitted to the CPLD through the cable. 4 . The system capable of centrally managing hard disk status according to claim 3 , wherein the cable includes an SGPIO bus or an I2C bus. 5. A system capable of centrally managing hard disk status according to claim 1, wherein the acquisition module includes a control chip, and the control chip transmits the hard disk status to the CPLDs. 6. A system capable of centrally managing the status of hard disks according to any one of claims 1-5, wherein the hard disks include SATA hard disks, SAS hard disks or NVMe hard disks. 7. A kind of system that can centrally manage hard disk state according to claim 6, is characterized in that, when described hard disk is SATA hard disk, control chip is SATA controller or SATA expander; When described hard disk is SAS hard disk, The control chip is a SAS controller or SAS expander; when the hard disk is an NVMe hard disk, the control chip is a CPU or a PCIE Switch. 8. A method for centralized management of hard disk status, characterized in that the method comprises: Obtain the running status of the hard disk, and transmit the running status of the hard disk to the CPLD through the cable; CPLD decodes the running status of the hard disk; According to the decoding result, the CPLD sends a control command to the display module; The display module displays the status of the hard disk according to the obtained control command. 9. A kind of method that can centrally manage hard disk state according to claim 8, it is characterized in that, described display module comprises LED total display and multiple groups of LEDs, every group of LEDs is matched with a hard disk, the output of described CPLD The end is connected with the LED total display, and the output end of the CPLD is also connected with any group of LEDs in the plurality of groups of LEDs; The LED total display is used to display the operating status of the entire storage system; The LEDs are used to display the status of each hard disk in the storage system. 10. A kind of method that can centrally manage hard disk state according to claim 9, it is characterized in that, described according to decoding result, CPLD sends the method for control order to display module, comprises: If the decoding result is that all hard disks are running normally, the CPLD sends a control command for the normal operation of the entire storage system to the LED total display, and the CPLD sends the Active state command and the Locate state command of the hard disk corresponding to the arbitrary group of LEDs to any group of LEDs; If the decoding result shows that at least one hard disk fails, the CPLD sends a control command to the LED total display indicating that the entire storage system is running abnormally, and the CPLD sends a command to light the Fault status of the hard disk to the LED matching the faulty hard disk.